baber/WOPTO huggingface dataset:
Patent GB-1337010-A (GB)
Title: Spectroscopic measurement systems
IPC: G01J3/28
Filed: 1970-12-23
Abstract: 1337010 Photo-electric spectrometers SHIMADZU SEISAKUSHO Ltd 23 Dec 1970 [24 Dec 1969 10 June 1970 17 June 1970] 61070/70 Heading G1A [Also in Division G2] A spectrometer has an input grid 31 and an output grid 35 which are rotated at the same speed to produce at the output grid a plurality of moirÚ fringe patterns, one for each dispersed wavelength, the pattern produced by a specific wavelength whose intensity is to be measured being discriminated from the others. Each grid is placed, together with a field lens 32, 37, in a revolving tube 12, 13 the parallel slits of one grid being inclined to those of the other. The grating 41 is set so that the image of the entrance grid produced by the specific wavelength coincides with the exit grid. In this position, all the moirÚ patterns rotate, but only the specific pattern maintains a constant fringe spacing while doing so. Pattern discrimination is effected by a combination of a mask 36 in the exit tube and a constantly rotating sectored wheel 24 having in one sector a glass plate 26 and in the other an achromatic prism 27 Fig.2  (not shown). The mask 36, comprising a plurality of parallel elongated apertures, is placed so that, with the glass plate 26 in the optical path, each aperture is aligned with the corresponding opaque part of the specific moirÚ pattern. The photocell (38) output in this part of the cycle is proportional to the total intensity of all the other wavelengths in the incident beam. With the prism 27 in the optical path the specific moirÚ pattern no longer exactly coincides with the exit grid and its fringe spacing is no longer constant, hence the photocell output in this part of the cycle corresponds to the total incident radiation intensity. The two detector outputs for each cycle are stored in capacitors and then, applied to a differential amplifier, to give, for each cycle, a final system output indicating the intensity of the specific radiation Fig.10 (not shown). The rotating plate/prism arrangement 26, 27 may be replaced by a rotatable reflector device having two reflector planes. In one position, the specific moirÚ pattern coincides with the exit grid but is deflected therefrom in the other position to give the two portions of a measuring cycle. In a further embodiment Fig.5 the discriminator mask 44 is movable between two positions in the exit tube 13 and the optical arrangement 26, 27 is dispensed with. In a first position the apertures in the mask correspond with the opaque portions of the specific moirÚ pattern, but in the second position this specific pattern is not blocked. The mask 44 assumes each position for 180 degrees of its rotational movement, the change in position being effected by the cam arrangement shown.
Patent GB-1283970-A (GB)
Title: A semiconductor light emitter
IPC: H01S5/30
Filed: 1969-12-19
Abstract: 1283970 Electroluminescence RCA CORPORATION 19 Dec 1969 [28 March 1969] 62014/69 Heading C4S [Also in Division H1] A semi-conductor laser which may operate at room temperature comprises a body of N- type material 14, Fig. 1, containing carrier electrons in a concentration of between 1 x 10<SP>18</SP> and 5 x 10<SP>18</SP> cms.<SP>-3</SP>, and a body of P-type material 2 contiguous and epitaxially related with the N-type material body at an interface 16 and having an energy gap at least 0À05 electron volts higher, a diffused P-type region 18 being formed in the N-type body 14 such that a light-emitting P-N junction 20 is provided, the junction being spaced from the interface 16 by between 1À2 and 3À0 Ám corresponding to a hole concentration at the interface 16 of between 1À5 Î 10<SP>19</SP> and 5 Î 10<SP>19</SP> cm.<SP>-3</SP>. The N-type body 14 may be gallium arsenide and the P-type body 12 galliumaluminium arsenide, the aluminium concentration being sufficient to provide an energy gap of between 1À48 and 1À78 electron volts. Alternatively both bodies may be gallium-aluminium arsenide with the P-type body 12 having an aluminium concentration such as to produce a higher energy gap of between 1À53 and 1À78 electron volts. The laser may be formed by a tip process in which the semi-conductor body 14 forms a substrate clamped within a graphite boat mounted in a tiltable quartz furnace tube, Fig. 2 (not shown). Examples of fabrication processes are: 1. A P<SP>+</SP>-type body 12 is formed on a silicondoped N-type single crystal substrate 14 of gallium arsenide by liquid phase epitaxial growth at a tip temperature of 930‹ C. from a melt consisting of gallium, 10 grams; gallium arsenide, 1À7 grams; aluminium, 12 milligrams; and zinc, 0À3 grams, the region 18 being formed by zinc diffusion. 2. A similar process is used but the melt is modified to aluminium, 6 milligrams; and zinc, 0À35 grams, the other constituents being unchanged. 3. A P<SP>+</SP>-type body 12 is formed on a tellurium-doped gallium arsenide substrate 14 by growth at a temperature of 900‹ C. from a melt consisting of gallium, 6 grams; gallium arsenide, 0À65 grams; aluminium 5 milligrammes; and zinc 0À20 grams. After completion of the growth operation the structure is heated with 0À007 grams of zinc arsenide to 850‹ C. in an evacuated chamber. 4. A body 14 and a P<SP>+</SP>-type body 12 are both formed by liquid phase epitaxy, body 12 being gallium arsenide and a layer being grown on the substrate 12 at 880‹ C. using a melt containing gallium, 6 grams; aluminium, 15 milligrams; and zinc, 0À20 grams. After growth the layer is lapped to a thickness of 0À001 inch, after which the body 14 is formed on the lapped surface by growth beginning at 920‹ C. from a melt containing gallium, 6 grams; gallium arsenide, 0À75 grams; aluminium, 3 milligrams; and tellurium, 2 milligrams. The semi-conductor may be provided with cleaved faces defining an optical resonator and includes electrodes 24, 28.
Patent GB-666828-A (GB)
Abstract: 666,828. Impulse transmitters. GENERAL ELECTRIC CO., Ltd., and PUCKETTE, C. C. Aug. 22, 1950 [Oct. 21, 1949], No. 27077/49. Class 40 (iv). In a trigger dial of the kind described in Specifi- .cation 518,721, movement of a rocker arm 3 by the teeth on the impulse wheel 1 is augmented by frictional engagement between two circular cams 2, 9. Cam 9 is fitted to the rocker and is urged by the rocker controlling spring 10 into engagement with cam 2, which is secured coaxially with the impulse wheel. During the setting movement of the dial the cams initially move the rocker arm firmly into engagement with the leading impulse tooth and subsequently, after the rocking movement is completed, displace the arm away from the wheel and against a stop 7. At the commencement of the return movement, the cams reset the arm into engagement with the teeth. Impulsing at springs 12 is then effected when the arm is restored to its original position, where further movement is restrained by the impulse springs. Both in this position and when the arm engages the stop, relative sliding motion takes place between the cams. According to the Specification, the arrangement reduces noise by preventing the rocker from riding over successive teeth during the setting movement and by providing a cushioning effect at the impulsing springs.
Patent GB-2007759-A (GB)
Title: Pressure die casting machines
IPC: B22D17/04
Filed: 1978-09-21
Abstract: A hot chamber die casting machine suitable for use with molten aluminium and other metals and alloys which in the molten state are corrosive to ferrous metals has an injection pump assembly comprising a hot chamber for the molten metal, an injection pump cylinder and piston within the hot chamber and an outlet nozzle leading to a die and connected by a gooseneck to the pump cylinder. The whole or part of the components of the assembly are protected from corrosion, oxidation, abrasion, erosion or mechanical and/or thermal shocks by being made of materials resistant to those actions or by having coatings and/or inserts made of such materials, examples of which are given. <IMAGE>
Patent GB-2004745-A (GB)
Title: Injectable suspensions of drug- containing liposomes.
IPC: A61K9/127
Filed: 1978-09-28
Abstract: Injectable pharmaceutical suspensions of liposomes containing a drug (eg. doxcrubicin hydrochloride or 5-fluorouracil) are prepared by a conventional method, and then the liposomes are separated from non-entrapped drug by shaking the suspension with a polymeric ion exchange resin or a polymeric adsorbent resin to adsorb the non-entrapped drug, then filtering off the resin. The ion exchange resin may be a strong or weak, anionic or cationic resin. The resultant liposomic suspensions may be lyophilised.
Patent GB-2058571-A (GB)
Title: Exercising perineal muscles
IPC: A63B23/20
Filed: 1978-10-16
Abstract: A device for exercising the perineal muscles comprises a shaft having a tapered portion with an enlarged spherical end for insertion in the vagina, these being provision for suspending various weights from the other end of the shaft. While in position, pull is exerted on the device by variable weights on a hanger. By combining repeated efforts of the muscles to retain the weighted device, with other physiological instructions, the device provides a training method for restoring function to the muscles of the perineal zone, weakened by pregnancy, age etc. <IMAGE>
Patent GB-2007118-A (GB)
Title: Centrifugal separator
IPC: B04C5/103
Filed: 1978-11-02
Abstract: A separator suitable for separating a crude oil feed containing gas into gas and liquid comprises a vessel having an inlet 7 for feed disposed so that feed introduced under a pressure gradient is caused to form a downwardly flowing vortex of enhanced liquid from which gas separates, an upper outlet 4 for the gas comprising a conduit extending downwardly into the vessel from the top thereof referred to as a vortex finder, a lower outlet for the enhanced liquid, and wherein the vortex finder has a baffle assembly 3 associated therewith, said baffle assembly being rotatable about a vertical axis. The baffle assembly 3 can be rotatable relative to the vortex finder. The vortex finder may be connected to a gas scrubber for removing oil droplets from the gas. <IMAGE>
Patent GB-2007683-A (GB)
Title: Thermoplastic elastomeric blends of olefin rubber and polyolefin resin
IPC: C08L21/00
Filed: 1978-11-08
Abstract: Thermoplastic elastomeric compositions exhibiting improved compression set and oil resistance comprise blends of olefin rubber and crystalline polyolefin resin in which the rubber is cured with phenolic curative.
Patent GB-2012700-A (GB)
Title: Belt conveyor
IPC: B65G23/32
Filed: 1978-12-08
Abstract: A belt conveyor having an endless conveyor belt for receiving the goods to be conveyed. The loaded section of the conveyor belt 1 is driven by at least one endless driving belt 11a which is in frictional contact with the loaded section. The driving belt moves on a plurality of carrier rollers 13 and is guided about deflection rollers 14 which are spaced at regular intervals corresponding at the most to double the width of the conveyor belt and are arranged to deflect the driving belt between the carrier rollers downwardly. In a preferred embodiment (Fig. 4, not shown) the loaded section of the conveyor belt is in the shape of a trough having a central flat region and is partly supported and guided by laterally arranged freely rotatable support rollers which are inwardly inclined, the endless driving belt or at least one of the endless driving belts being arranged to be in frictional contact with the said central region of the loaded section. <IMAGE>
Patent GB-2009381-A (GB)
Title: Relining furnaces
IPC: F27D1/16
Filed: 1978-12-15
Abstract: The invention relates to the relining of furnaces and in particular the relining of soaking pits in the steel industry. A plurality of platforms are provided, each having a surface area such as to fit within the lining being constructed, and each platform is loaded, before being lowered into a pit, with building materials sufficient for a respective course of the lining and in an optimally organised configuration. The platforms are then transported in sequence to, and lowered into the pit to a level convenient to the height of the respective course to be built. Stacking frames are preferably lowered at appropriate times into the pit to support subsequent platforms at the desired levels and certain of the platforms, once their building materials have been used, may remain in the pit to define a supporting construction with the stacking frames.
Patent GB-2010399-A (GB)
Title: Cushioning Means for Hydraulic Cylinders
IPC: F15B15/22
Filed: 1978-12-19
Abstract: In a linear hydraulic cylinder with cushioning means to cushion the impact of the piston on the cylinder at each extremity of its stroke, each cushioning means comprises a cylindrical sealing element 16, 12 mounted on the piston rod 7 or on a rod 11 mounted on the piston 8, and urged away from the piston by a compression spring 17, 14. As the piston approaches one extremity of its stroke, one of the cylindrical sealing elements 16, 12 engages an annular sealing face 23, 22 in the cylinder wall and seals off the cylinder at the end of the cylinder which the piston is approaching. Fluid leaving the cylinder must then pass through a passage 19 and needle valve 20 (a passage 19 and valve 20 being provided at each end of the cylinder) and the rate of flow of fluid through the valve 20 controls the deceleration of the piston. <IMAGE>
Patent GB-2017859-A (GB)
Title: Safety locking device for lid of a centrifuge
IPC: B04B7/06
Filed: 1979-02-20
Abstract: The invention relates to a device for locking a plate 3 in an opening 2 to a rotary body 1, and is intended to prevent removal of the plate 3 which can be in the form of a lid 3, while the body 1 is in rotation. The locking device comprises between the plate (3) and the rotary body (1) in an extension (6) of the rotary shaft of the rotary body coupling consisting of a rod (5) and at least one radial pin (7), and a cavity with an opening (8) for the rod (5) and at least one open cam slot (9, 10) for the pin (7) facing the centre of the opening (8), the cam slot (9, 10) being diagonally set as inclined in the rotating direction of the rotor (1) to prevent removal of the lid or plate 3, by inwardly camming the pin (7) to hold the plate 3 closed, until the rotor 1 has stopped. <IMAGE>
Patent GB-2022147-A (GB)
Title: Indigo composition and processes for their preparation
IPC: C09B67/28
Filed: 1979-02-27
Abstract: The invention provides a composition of indigo with a natural xanthanpolysaccharide and a dispersion of the composition in an aqueous or aqueous-miscible medium. The dispersion is particularly desirable in the dyeing industry because it provides a clean and convenient means for handling indigo. It is homogeneous and remains so over long periods and avoids the problems associated with the handling of dry colour.
Patent GB-2016666-A (GB)
Title: Piezoelectric Gas Lighter
IPC: F23Q3/00
Filed: 1979-03-16
Abstract: A piezoelectric gas lighter for generating electrical discharges externally to a handgrip 12, provided with a piezoelectric transducer connected electrically to a pair of metal electrodes 36 and 38, a pushbutton 24 for operating the piezoelectric transducer, and a conductor body 16 independent of the electrical circuit of the piezoelectric transducer, arranged adjacent to the said metal electrodes in such a way that respective discharges are formed between the conductor body and each electrode. The metal conductor body 16 has two sharp projections 40, 42 adjacent to respective electrodes 36, 38. Its presence provides a stronger discharge and two separate ignition regions, which facilitate the ignition of the gas. <IMAGE>
Patent GB-2046239-A (GB)
Title: Optical fibres
IPC: G02B6/036
Filed: 1979-04-11
Abstract: Monomide optical fibres wherein both the core and cladding are of doped vitreous silica are characterized in that the cladding dopant is a phosphorus oxide plus either fluorine or boric oxide. The core dopant is preferably a phosphorus oxide plus germania. The cladding is preferably surrounded by an outer layer of undoped vitreous silica. Manufacture is by the "modified chemical vapour deposition process". An optical fibre can be made using this method in which the core is formed by evaporation of dopants during the production of the preform.
Patent GB-2049593-A (GB)
Title: A ship navigation and handling training simulator
IPC: G09B9/06
Filed: 1979-05-31
Abstract: A ship navigation and handling training simulator comprises a console (1) for use by an instructor and a console (2) for use by a trainee navigator or student. Each console (1 or 2) has a visual display unit (3 or 4) with a screen (5 or 6) to provide a mimic display of the ship and environmental information, and the instructor console (1) is associated with two groups of controls (18, 19) for setting in, respectively, the environmental and display information applicable to the navigational or ship handling exercise to be performed and information representing ship/tug control decisions by the student. The consoles are interconnected by a voice link (60, 61) so that the instructor can initially set the environmental display control (18) and subsequently adjust the group of controls (19) for ship/tug control in accordance with vocal instructions from the student transmitted via the voice link (60, 61). Computer means are programmed to control the displays on the screens (5, 6) on a time scale in accordance with the information set-in on both groups of controls (18, 19) and the changes thereto during the course of the exercise. <IMAGE>
Patent GB-2022167-A (GB)
Title: Collapsible building
IPC: E04B1/344
Filed: 1979-06-20
Abstract: A building or framework for a building to be constructed in sections each section having two pairs of uprights (10) and a pair of roof elements (15) which together span the space between the pairs of uprights. A roller arrangement (14) is fixed to the top of each upright (10) and the roof elements (15) are slid into position on the rollers from the space between the two pairs of uprights. These roof elements are then linked in the centre of the space by a hinge (17). The central hinged part is then lifted, until it forms a roof crest and is locked in position by locking pins disposed adjacent the hinge (17). Each upright has a pair of pivoted struts (12) which are then secured to the parts of the roof elements projecting outwardly of the uprights (10) in a triangulated formation, optionally assisted by pivoted locking strips (11) mounted at the tops of the uprights (10), so as to lock the uprights and roofing elements rigidly in position. Suitable cladding or infil, glazing and doors can be added either before or after assembly. <IMAGE>
Patent GB-2024223-A (GB)
Title: Process for the preparation of N,N'-disubstituted 2- naphthaleneethanimidamides and intermediates used therein
IPC: C07C257/06
Filed: 1979-07-02
Abstract: An N,N'-disubstituted 2- naphthaleneethanimidamine salt is prepared by the conversion of a 2- naphthylacetonitrile into a novel alkyl 2-napthaleneethanimidate salt intermediate by alcoholysis, followed by treatment of the intermediate with an alkylamine. The products can have CNS activity.
Patent GB-2065736-A (GB)
Title: A moulded plastics septic tank
IPC: E03F11/00
Filed: 1979-07-31
Abstract: A septic tank fabricated from plastics components which can be interfitted compactly for transport comprises a base part 10 and a similar upper part 16, both having a rectangular basal wall and upstanding side walls which flare outwardly to allow nesting for transport. An arched partition 19 is attached between the two parts 10, 16 and has cut-outs 20 allowing the upward passage of effluent. Other components comprise an access shaft 23, an inlet pipe 25-26 extending down through the partition 19 into the interior of the base part 10, and an outlet pipe 28 extending from the interior of the upper part 16. For transport, the upper part 16 is nested in the base part 10, and the access shaft 23 as well as the pipes 26 and 28 are stowed in the upper part. Then the partition 19 is placed over the stowed parts, to serve as a lid. <IMAGE>
Patent GB-2032901-A (GB)
Title: Purifying and/or Bleaching Calcium Sulphate
IPC: C09C1/02
Filed: 1979-10-02
Abstract: Calcium sulphate to be used as pigment and/or filler agent is subjected to the effect of an oxidizing bleaching agent, e.g. chlorine, hypochlorite, hypochlorous acid, chlorine dioxide or peroxides. Preferably, the treatment is carried out with the CaSO4 being in the form of a suspension in water and the slurry also is subjected to a cleaning and fractionation for obtaining a definite particle size distribution.
Patent GB-2052877-A (GB)
Title: Improvement in or relating to low-voltage electric switching systems
IPC: H05K7/14
Filed: 1980-03-17
Abstract: An electric low-voltage switching system comprises a cabinet containing inserts 11 in a number of tiers. Power is supplied by vertical busbars 7 each connected by plugs 420 to a horizontal distribution bar 42, which has plugs 421 for each counter-plug 4210 of each insert 11 in the tier in question. The distribution bars 42 are secured via insulated spacers 41 to a bearing plate 40 of an assembly unit 4 which is pre-assembled by wiring at the factory. The assembly unit also bears plugs 43 which co-operate with the insert plugs 430 in order to transmit the power output and control current from the insert to the cabinet. The plugs 43 are connected at the factory by wiring 44 to the terminals 45, 46, to which the output lines 50 are connected. <IMAGE>
Patent GB-2052319-A (GB)
Title: A method of assembling permanent magnet rotors for electrical machines
IPC: H02K1/27
Filed: 1980-05-09
Abstract: A method of assembly includes locating a plurality of rare earth permanent magnet elements 11, by means of flats 12 and/or spacers 13, in equi- spaced relation on a magnetisable annulus 10. A non-magnetisable sleeve 14 surrounds the magnet elements 11 and is in captive engagement with axially-directed end faces of the annulus 10. A filler 15 ensures that all the volume between the annulus 10 and sleeve 14 is occupied. <IMAGE>
Patent GB-2078289-A (GB)
Title: Clip
IPC: B60J10/00
Filed: 1980-06-09
Abstract: An assembly for mounting a trimming strip 9 about the periphery of a vehicle windshield 2 comprises a plastics strip 5 with a channel 13 attached to the peripheral edge 1 of the window frame e.g. by adhesive tape 6 and a plurality of clips 7 held in the channel 13 at predetermined intervals. The clips are retained in the channel 13 by a detent 18 on a tongue 17 and have a claw 8 to secure the trimming strip 9. The clips may be released from the channel, e.g. during repair work, by inserting a tool in the recess 20 to press the tongue 17 backwards and upwards. <IMAGE>
Patent GB-2057789-A (GB)
Title: A two part connector having electromagnetic interference protection
IPC: H01R13/658
Filed: 1980-07-28
Abstract: In an electrical connector a coupling nut 300 unites a first metal shell 100 and a second metal shell 200. Metal to metal contact between a flange 140 of the first shell and an end wall 220 of the second shell is assured by a compressible conductive spring 500, situated within a groove 180 in the flange 140, contacting both the flange 140 of the first shell 100 and the end wall 220 of the second shell 200, and hence assuring continuity of the electromagnetic interference shield effected by the metal shells. <IMAGE>